[notabee]

You can copy an encrypted backup file to a usb drive and then either copy that to a few other secure places or just put it in a safe depending on how much redundancy you need. I use Aegis these days as a backup MFA option for a yubikey. You can password protect access to open Aegis with its own unique password which I like (no cloud dependency or access), but it's kind of inconvenient if you have a decently sized password so I prefer it as the backup option if the yubikey goes missing.